157443974 has 8 divisors (see below), whose sum is σ = 237403008. Its totient is φ = 78309640.

The previous prime is 157443967. The next prime is 157443983. The reversal of 157443974 is 479344751.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205697 + ... + 206460.

It is an arithmetic number, because the mean of its divisors is an integer number (29675376).

Almost surely, 2^157443974 is an apocalyptic number.

157443974 is a deficient number, since it is larger than the sum of its proper divisors (79959034).

157443974 is a wasteful number, since it uses less digits than its factorization.

157443974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412350.

The product of its digits is 423360, while the sum is 44.

The square root of 157443974 is about 12547.6680702033. The cubic root of 157443974 is about 539.9771069399.

The spelling of 157443974 in words is "one hundred fifty-seven million, four hundred forty-three thousand, nine hundred seventy-four".